# Audio Spectrum Analyzer Pro vs Oscilloscope & Spectrogram

The clearest difference is price: Audio Spectrum Analyzer Pro at Free against Oscilloscope & Spectrogram's $5.99. Audio Spectrum Analyzer Pro also leads on ratings volume (238 vs 28). Oscilloscope & Spectrogram's advantage is in-app purchases (none vs 2) and update cadence (every 4 days vs every 7 months). On rating, ads, device support and iOS requirement there is nothing between them.

Audio Spectrum Analyzer Pro is free to download; Oscilloscope & Spectrogram costs $5.99 up front. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. Oscilloscope & Spectrogram asks for nothing beyond the download.

Oscilloscope & Spectrogram holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 238 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 57% of Audio Spectrum Analyzer Pro's written reviews are positive against 70% of Oscilloscope & Spectrogram's.

Audio Spectrum Analyzer Pro ships an update every 7 months, Oscilloscope & Spectrogram every 4 days. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Audio Spectrum Analyzer Pro | Oscilloscope & Spectrogram |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.4 (238 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews) | **[4.6 (28 ratings)](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137/reviews)** |
| Number of ratings | **238** | 28 |
| Positive reviews | 57.4% of reviews | **70.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#199** |
| Size | 40 MB | 3 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## What reviewers say

### Audio Spectrum Analyzer Pro

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806)

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

**Highlights:** Octave Band Real Time Analyzer, FFT Plot (Fast Fourier Transform), Sound level meter (dB meter), Noise Rating and Noise Criterion support, Support for external microphones, Pre-calibrated mic profiles

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Mode | $19.99 | per year |
| Premium Pack | $29.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 💰 Completely free with no ads
- 🎯 Accurate frequency and spectrum analysis
- 📊 Multiple visualization modes (FFT, spectrograph, bar display)
- 🔧 Professional-grade audio measurement tool

**What reviewers complain about**

- 💸 Aggressive subscription/paywall nags
- 🔄 Frequent iOS compatibility issues after updates
- 📉 Features moved behind paywall in recent updates
- 🐛 App crashes on startup (especially iOS 16/26)
- ⚠️ Misleading free trial that requires payment

**Reported bugs**

- App crashes on iOS 16 and iOS 26 launches
- FFT resolution not working after iOS updates
- Graph display freezes or becomes unresponsive
- Spectrograph mode too slow on newer iPhones
- Frequency alignment issues with dynamic display

**Requested features**

- Audio file upload capability
- White noise/test signal generator
- Microphone calibration file support
- Recording functionality with timestamp
- Multiple frequency cursors for comparison


### Oscilloscope & Spectrogram

[App page](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137)

**Currently charting:** #199 Top Paid · Music (US App Store)

Analyze audio in real-time with detailed oscilloscope and spectrogram views. Pause, scroll, and zoom to precisely identify frequencies, notes, and sound events. Offers advanced triggering and a unique Bark-frequency scale for detailed analysis.

**Highlights:** Real-time oscilloscope and spectrogram, Pause and scroll audio history, Pinch-to-zoom functionality, Frequency and MIDI note identification, Stereo and mono views, Trigger with lookahead

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Spectrum Analyzer Pro free?

Audio Spectrum Analyzer Pro is free to download, with in-app purchases available.

### Is Oscilloscope & Spectrogram free?

Oscilloscope & Spectrogram costs $5.99, with no in-app purchases.

### Which has better reviews, Audio Spectrum Analyzer Pro or Oscilloscope & Spectrogram?

Oscilloscope & Spectrogram is rated higher. Audio Spectrum Analyzer Pro averages 4.4 out of 5 from 238 ratings, while Oscilloscope & Spectrogram averages 4.6 from 28 ratings.

### Do Audio Spectrum Analyzer Pro or Oscilloscope & Spectrogram have ads?

Neither Audio Spectrum Analyzer Pro nor Oscilloscope & Spectrogram shows ads.

### Which is updated more often, Audio Spectrum Analyzer Pro or Oscilloscope & Spectrogram?

Audio Spectrum Analyzer Pro ships an update every 7 months, and Oscilloscope & Spectrogram every 4 days. Most recently, Audio Spectrum Analyzer Pro was updated on September 24, 2026 and Oscilloscope & Spectrogram on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*